FXUS64 KBRO 231735
AFDBRO

Area Forecast Discussion
National Weather Service Brownsville TX
1235 PM CDT Sun Aug 23 2026

...New DISCUSSION, AVIATION, MARINE...

.KEY MESSAGES...
Updated at 1232 PM CDT Sun Aug 23 2026

- Unseasonably hot and rain-free conditions are expected to 
  continue through this next week.

- Moderate (level 2 of 4) to Major (level 3 of 4) Heat Risk could
  increase to areas of Extreme (level 4 of 4) Heat Risk 
  throughout the upcoming week.

- A combination of dry fuels, low relative humidity, and hot
  temperatures could lead to elevated fire danger risks over the
  next week.

&&

.DISCUSSION...
Issued at 1232 PM CDT Sun Aug 23 2026

Strong upper-level ridging over West Texas and the Desert Southwest 
is expected to remain dominant over the next week, keeping 
conditions hot and dry over Deep South Texas.  Temperatures are 
expected to be unseasonably hot, with high temperatures reaching the 
triple digits each day.  Heat Risk will be a concern too, with 
Moderate (level 2 of 4) and Major (level 3 of 4) Heat Risk possibly 
increasing to Extreme (level 4 of 4) by the weekend.  Heat indices 
are generally expected to be between 105 to 110, though some areas 
could briefly see higher values exceeding 111 throughout the week.

Hot temperatures, dry fuels, and low relative humidities over the 
next few days will also enhance the potential for fire weather, 
particularly through the early and middle parts of this week.  This 
could lead to rapid wildfire spread. &&

.AVIATION...
(18Z TAFS)
Issued at 1232 PM CDT Sun Aug 23 2026

VFR conditions at all airports with light to moderate
southeasterly winds.  

&&

.MARINE...
Issued at 1232 PM CDT Sun Aug 23 2026

Favorable marine conditions are expected throughout the week with 
low wave heights (1 to 2 feet) and light to moderate southeasterly 
winds. 

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             80  98  79  98 /   0   0   0   0 
HARLINGEN               76 102  75 102 /   0  10   0   0 
MCALLEN                 79 104  79 104 /   0   0   0   0 
RIO GRANDE CITY         76 104  76 104 /   0   0   0   0 
SOUTH PADRE ISLAND      81  89  81  90 /   0   0   0   0 
BAYVIEW/PORT ISABEL     78  96  78  97 /   0   0   0   0 

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&

$$

SHORT TERM...55-MM
LONG TERM....55-MM
AVIATION...55-MM